Boseong Gun

Originally, Boseong was in the Mahan region, but since annexed to Baekje during King Geunchogo of Baekje, the gun has been called 'Bokhol (伏忽)'.

Since the revision of all designations of counties and prefectures into the Chinese system during year 16 of King Gyeongdeok of Silla (year 757), it was first called 'Boseong-gun'.

• Since the introduction of the Jeoldosa system in year 14 of King Seongjong (year 995), the designation changed to Paeju, and a nickname Sanyang appeared.
• Since the reorganization of the administrative systems in year 9 of King Hyeonjong (year 1018), the designation Boseong resurrected, and it became an Unggun (powerful gun) with 7 subsidiary hyeons (prefectures) as the head gun.

• During the 4th year of reign of King Taejo (year 1395), due to frequent invasions of Japanese, the ruling place of Heungyang-hyeon (Goheung) was transferred to Joyang-hyeon (present Joseong-myeon), a subsidiary hyeon of Boseong-gun, and Joyang was temporarily administered under Goheung.
• In year 9 of King Taejong (year 1409), 4 hyeons including Namayang, Taegang, Dohwa and Pungan went into the jurisdiction of Heungyang while Joyang-hyeon was returned to the original gun.
• In year 12 of King Sejong (year 1430), it was temporarily placed under the jurisdiction of Protectorate of Jangheung and then moved into the Protectorate of Suncheon. Then, in year 32 of King Gojong (year 1895), it went into the jurisdiction of Naju-bu and then went into the jurisdiction of Gwangju-bu in August 1896.
• On 15 October of the second year of reign of King Sunjong (year 1908), Nakan-gun was abolished, and among the 11 myeons of Nakan-gun, 4 myeons including Namha, Namsang, Gosang and Goha were combined into Gosang-myeon and Nam-myeon and transferred into the original gun.

• In 1914, with the massive reorganization of the administrative districts by the Japanese Empire, the following changes were made:
  • A part of Yul-ri, Maheul, Jangdong-myeon and a part of Geumdong-ri, Bupyeong-myeon of Jangheung-gun
  • A part of Segok-ri, Dongsang-myeon and a part of Bongnim-ri, Dongha-myeon of Suncheon-gun
  • And a part of Namdang-ri, Daeseo-myeon and a part of Hasong-ri, Dong-myeon of Goheung-gun were annexed to the gun.
  • Yongmun-myeon and Okam-myeon of the gun were combined into Boseong-myeon
  • Gyeomeo-myeon and Baekya-myeon were combined into Gyeombaek-myeon
  • Munjeon-myeon and Bongdeok-myeon were combined into Mundeok-myeon
  • Chon-myeon and Songgok-myeon were combined into Deungnyang-myeon
  • And Jonae-myeon and Daegok-myeon were combined into Joseong-myeon.
  • Hoeryeong-myeon and Cheonpo-myeon of Jangheung-gun were annexed into Hoecheon-myeon and Ungchi-myeon was annexed into the gun.
• In 1915, Gosang-myeon and Nam-myeon were combined into Beolgyo-myeon.
• In April 1929, 5 Ri's including Yeonsan, Bongnim, Hoejeong, Jangyang and Hodong in Dongcho-myeon of Suncheon-gun were annexed into Beolgyo-myeon.
• On July 1, 1937, Beolgyo-myeon was raised to the status of an eup.
• On October 15, 1941, with the promotion of Boseong-myeon into an eup, Boseong-gun became an administrative district with 2 eup's, 10 myeon's and 126 ri's.

• In return for Hancheon-ri, Mundeok-myeon of the gun annexed into Songgwang-myeon of Seungju-gun on July 1, 1973, Jangdo-ri, Donggang-myeon of Goheung-gun and its waters were annexed into Beolgyo-eup on February 15, 1983.
• Due to the Juam multipurpose dam, which began construction in 1984 and completed in 1991, 8 ri's in Mundeok-myeon, 7 ri's in Bongnae-myeon and a part of 2 ri's in Yuleo-myeon in the gun were submerged under water
• In 1988, it consisted of 2 eup's, 10 myeon's, 126 legal ri's (314 administrative ri's) and 593 natural villages
• And on December 16, 2009, Usan 4-ri of Boseong-eup was divided into Usan 4-ri and 5-ri, and therefore, the total administrative ri's increased to 315.